Perplexity Is Different
Unlike ChatGPT, which primarily draws from training data with optional browsing, Perplexity searches the web in real-time for every query. This makes it more transparent about its sources — and more accessible to optimize for.
How Perplexity Selects Sources
Perplexity uses Bing's index as its primary web source. It then applies its own relevance ranking to determine which pages to cite. Based on our observations, the key factors are:
- Content relevance to the specific query (exact-match terms matter)
- Source authority and trustworthiness
- Content freshness — recently updated pages are strongly preferred
- Structured, well-organized content that's easy to extract quotes from
- Presence in Bing's index (if Bing hasn't indexed you, Perplexity can't find you)